Wrapping-machine control



Olctr 30, 1928.,

F.FARMER WRAPPI NG MACH INE CONTROL Filed July 5l, 1926 l BY I ff if 2@ 32 3 Si M J5 ATTORNEY 'Patente-i oct. 3o, 1928 UNITED STAT;

FRED FARMER, or BROOKLYN, NEW

wRAPPINGmAcHINE CONTROL.

Application led July 31 behereinafter fully described and then spe- CTI cifically set forth in the claims hereunto appended'.

In the accompanying drawings, in which like characters of reference indicate the same or like parts, Figs. 1, 2`and 3 are respectively side-elevation, plan, and end elevation of a control constructed in accordance with the invention. Y

Generali speaking, the structure shown is provide with a gravity feed chute from which the articles to be wrapped are delivered to a conveyor running substantially `at right angles vto said chute, so that the articles have to pass around a corner formed by the walls of the chute and the conveyor, the articlesfshown being loaves of bread, and the machine in connection with which the control is used bein a well kgown bread wrapping machine. T e control includes a` yielding section of one of the walls of the chute which acts as the actuating member ofthe device. When a defective or misplaced article. passes this section and is caught by the l conveyorto be advanced at right angles thereto, said article presses against said section, moves it, and thereby `actuatestheniachine-sto ping mechanism of the control; and when t 1s occurs, a locking dog engages the control and preventsfstartf ing of the machine until the defective or- "mlsplaced article is removed.

" is provided a In carrying the invention into effect, there avity feed chute, a conveyor receiving artic es from said chute and movingthem in a direction substantially at rightangles thereto, and machine-stopping mechanism automatically actuated only by a 4defectiv vor misplaced article passing from said c ute to said conve or.` constructions contemplate ,there is also provided means for preventing starting of the machine when stopped until after the de- In the .besti 192e. semana. 126,187.

to brackets 6 mounted on rods 7 carried byI the\4 frame '8 of the wrapping machine in connection with which the control is employed. The side walls 9 of the chute, which are reinforced by the bars 10, are adjustably supported from the brackets 6 by means of studs 11 attached to the bars 10, the studs 11 being clamped in position by means of the nuts 12.

The inside wall of the chute has a yielding section 13 which is hinged to the stationary part of the wall by means ofa pintle 14 engaging lugs provided in a Casting 15 formin the end of the reinforcing bar 10 of the inside chute wall. The hinge 'end of the section 13 is provided with' a projecting arm 16 extending at right angles from the chute wall and held in tension by the coil spring 17 surrounding the pintle 14. The free end of ,the section 13 carries a upon which is hinged a clamp 19 having a thumb screw 20. The clamp 19 serves to adjustably attach to the section 13 the strip a stop 25 fastened to the'plate or strip 21.

,pin 1,8

erpendicular to the section 13, by means o a spring 24 pulling it against The conveyor which receives the articles YORK, ASSIGNOR TO AMERICAN MACHINE AND I COMPANY, A CORPORATION 0F NEW JERSEY. i

from the chute and carries them to the Wrap- Y ping mechanism,` not shown, has a slotted bottom plate .26 supported by brackets 27 vy mounted onrods 28 fastened to the main frame 8. -Upright strips 29 areN attached to the lower edge of the plate 26 and support rails 30 forming a" stationary rear Wall for the conveyor. Qn the ends of the supporting rodsn 28 are mounted brackets 31 in which isjournaled a shaft 32 carrying a sprocket 33 which'constitutes one ofthe sup\ ports of an endless chain 34 having equilo; w

,distant lingers 35 which pass through the 48 on the rod 41-when the'latter drops.

slot of the plate 26 and engage the articles received from the chute and advance them toward the wrapping mechanism.

To the main frame 8 of the machine, brackets 36, only one of which is shown, are attached which carry a clutch operating shaft 37 having an arm 38 to which the clutch shifting rod 39 is attached. On the shaft 37 is mounted a forked arm 40l through the free end of which a rod 41 passes. y This rod has a collar 42 normally resting on the arm 1G of the section 13. rlfhe rod 41 is guided by brackets 43 and 44 attached to the frame 8 and rod 7 respectively. It has a knob 45 at its top, and a weight 46 at its bottom. Upon the bracket 44 is placed a cushioning spring 47 which engages a collTar o the bracket 43 is attached a pin 49 on which vis hung a dog 50 normally resting yin an inclined position against the edge of the upper shoulder of the collary42 of the rod 41 when said rod is in its highest or normal position.

So long as the articles are properly fed into the range of action of the fingers of the conveyor chain, the hinged' section 13 of the chute wall remains in the position shown by the dotted lines on Fig. 2, and the arm 16 remains in engagement with the collar 42 of the. rod 41, thus l holding the latter inactive and permitting idle movement of the forked arm and manipulation of the clutch arm 38 by means of the handle 52. When, however, one of the articles reaches the conveyor'in a damaged or twisted condition, it will strike the section 13 when-advanced bythe conveyor. The section 13 is thereby caused to swing on the pintle 14, thus disengaging the arm 16 from ythe collar 42 and permitting the weight 46 to drop carrying the rod 41 with it. Since the free end of the wall 23 of the conveyor rests against theguide 53, the wall 23 will turn on the hinge 22 as the latter moves around the pintle 14. Imprpperly fed -articles 51 areuprevented from dropping on the sprocket 33 by a guard 54 attached to the end of the reinforcing bar 10 of the outside chute wall. l

As the' weight 46 descends; the shoulder of the knob 45 engages the fork of the arm 40, pulling the latter down into the position shown in dotted lines in Fig. 3, thereby turn`VV ing the shaft 37 and causing the arm 38 to shift therod 39 into de'clutchingy position, whereupon the machine will immediately -w stop. When the rod 41 reaches its lowermost position, and the collar 48 rests on the cushioning spring 48, the dog 50, which is then out of engagement with the collar 42,

drops t a vertical position over the-collar 42 and thus prevents the: operator from starting the machine by turning the handle 52 since the shaft 37will not turn until the Leeaaae rod 41 has been raised. Consequently, the dog 50 must be reset by lifting it up and raising the rod 41 before the machine can be restarted. But the rod 41 will not remain in its raised position unless the arm 16 is replaced under the collar 42 which can be done only after the defective or misplaced article has beeny removed. rlhus, the mainclined conveyor receiving articles 'from sald chute. and movlng them 1n a direction lsubstantially at right angles thereto, and

ymachine-stopping mechanism automatically actuated only by a defective or misplaced l article passing from said chute to said conveyor, said smechanism including an actuating member forming a yielding section of one ofthe walls of said chute.

3. The combination with an inclined gravity feed chute, ofc-a correspondingly inclined conveyor receiving articles from said chute land moving them'in a direction substantially gravity feed chute, of a correspondingly` at right' angles thereto, and machine-stopy ping mechanism automatically actuated only by a defective ork misplaced article passing from said chute to said conveyor, said mechanism including an actuating member hinged to and forming a yielding section of one of the walls of said chute, and a conveyor wall hinged to the free end of said section.

4. The combination withan inclinedy gravity feed chute, of a correspondingly inclined conveyor'receiving articles from said chute and moving them in a direction substantially at right angles thereto, and machine-stopping mechanism automatically actuated only by a defective or misplaced article passing from said chute to said conveyor, said mechanism including an actuat ing member hinged to and forming a yieldingsection of one of the walls of said chute, and a weighted clutch controlling device normally held inactive by said actuating member.

5. The combination with an inclined gravity feed chute, of a correspondingly inclined conveyor receiving articles from said chute and moving them in a direction substantially at right angles thereto, and machine-stopping mechanism automatically actuated only by a defective or misplaced article passing from said chute to said conmegane veyor, said mechanism including an actuating member hinged to and forming a-yielding section of one of the walls of said chute and having a projecting arm, and a weighted clutch controlling device having a collar normally in engagement with said arm to normally hold said device inactive.

6. The combination with an inclined gravity feed chute, of a correspondingly inclined conveyor receiving articles itrom said chute and moving them in a direction substantially at right angles thereto, and machine-stopping mechanism automatically actuated only by a defective or misplaced article passing from said chute to said conveyor, said mechanism including means for preventing starting of the machine when .stopped until after the defective or misplaced article has been removed.

7. TheV combination with a gravity feed chute, of a conveyor receiving articles from said chute and moving them in a direction substantially at right angles thereto, and

machine-stopping mechanism automaticallyactuated only by a defective or misplaced article passing from said chute to said conveyor, said mechanism including an actuating member hinged to and forming ay yielding section of one of the walls of said chute and having a projecting arm,- a

Vweighted clutch controlling device having a upper side of said collar when the machine is stopped to prevent starting of the same until after the defective or misplaced article has been removed.

8. The combination with a walled path- Way along Which articles travel, of machine stopping mechanism actuated only by a defective or misplaced article traveling along said pathway and including an actuating member hinged to and forming a yielding section of a Wall of said pathway and having a projecting arm, and a Weighted clutch controlling device having a collar normally in engagement with said arm to normally hold said device inactive.

9. The combination with a walled path- Way along which articles travel, of machine stopping mechanism actuated only by a defective or misplaced article traveling along said pathway and including an actuating member hinged to and forming a yielding section of a Wall of said pathway and having a projecting arm, a weighted clutch controlling device having a' collar normally in engagement with said arm to normally hold said device inactive7 and a gravityactuated dog engaging the upper side of said collar when the machine is stopped to prevent startin of the same until after the defective or mlsplaced article has been removed.

In testimony whereof, I have signed my name to this 'specilicatiom FARMER. 

